Anti-fouling adhesive sheet, and anti-fouling treatment method for a structure using said anti-fouling adhesive sheet

Patent metadata

Field	Value
Publication number	US-10066129-B2
Application number	US-201314425187-A
Country	US
Kind code	B2
Filing date	Aug 30, 2013
Priority date	Sep 4, 2012
Publication date	Sep 4, 2018
Grant date	Sep 4, 2018

Abstract

The present invention provides an anti-fouling pressure-sensitive adhesive sheet and anti-fouling treatment method capable of preventing peeling from overlapping portions when adjacent anti-fouling pressure-sensitive adhesive sheets are attached by allowing end portions thereof to overlap each other. The anti-fouling pressure-sensitive adhesive sheet of the present invention includes a base material layer; a pressure-sensitive adhesive layer provided on one side of the base material layer; and an anti-fouling layer provided on another side of the base material layer, wherein the anti-fouling pressure-sensitive adhesive sheet has, at an end portion thereof, a bonding margin including parts of the base material layer and the pressure-sensitive adhesive layer, the parts extending beyond the anti-fouling layer.

First claim

The invention claimed is:

1. An anti-fouling treatment method for a structure, comprising sequentially attaching three or more anti-fouling pressure-sensitive adhesive sheets onto a surface of a structure to be subjected to anti-fouling treatment so that a bonding margin of a preceding anti-fouling pressure-sensitive adhesive sheet is overlapped by a pressure-sensitive adhesive layer surface of a succeeding anti-fouling pressure-sensitive adhesive sheet,
wherein each anti-fouling pressure-sensitive adhesive sheet comprises a base material layer; a pressure-sensitive adhesive layer provided on one side of the base material layer; and an anti-fouling layer provided on another side of the base material layer,
wherein the anti-fouling pressure-sensitive adhesive sheet has, at only one end portion thereof, the bonding margin including parts of the base material layer and the pressure-sensitive adhesive layer, the parts extending beyond the anti-fouling layer, and
wherein an adhesive strength between the base material layer-side surface of the bonding margin and the pressure-sensitive adhesive layer is higher than an adhesive strength between the surface of the structure to be subjected to anti-fouling treatment and the pressure-sensitive adhesive layer.

2. The anti-fouling treatment method for a structure according to claim 1 , wherein the bonding margin is overlapped by the pressure-sensitive adhesive layer surface so that an overlapping width of the anti-fouling pressure-sensitive adhesive sheets is larger than a width of the bonding margin, and
wherein the anti-fouling treatment method further comprises cutting off an overlapping portion beyond the bonding margin.

3. The anti-fouling treatment method for a structure according to claim 1 , wherein the bonding margin has a base material layer-side surface thereof subjected to easy-adhesion treatment.

4. The anti-fouling treatment method for a structure according to claim 1 , wherein the bonding margin has, at an end portion thereof, an inclined surface that is inclined so as to have a thickness decreasing from a base material layer-side surface toward a pressure-sensitive adhesive layer-side surface.

5. The anti-fouling treatment method for a structure according to claim 1 , wherein the anti-fouling layer is a silicone-based resin layer or fluorine-based resin layer each containing a silicon oil and/or liquid paraffin.

6. The anti-fouling treatment method for a structure according to claim 1 , wherein a 180° peeling adhesive strength of the pressure-sensitive adhesive layer at 23° C. and a tension speed of 300 mm/min is 15 N/20 mm or less, and a 180° peeling adhesive strength between the base material layer-side surface of the bonding margin and the pressure-sensitive adhesive layer at 23° C. and a tension speed of 300 mm/min is 20N/20 mm or more.

Assignees

• Nitto Denko Corp

Inventors

• Hara Kazutaka
• Kurata Naoki
• Naito Tomonari
• Suzuki Satoru
• Sueyoshi Taiki
• Maruyama Kouji

Classifications

• C09J2433/00

  Presence of (meth)acrylic polymer · CPC title

• B63B59/00

  Hull protection specially adapted for vessels; Cleaning devices specially adapted for vessels {(inhibiting corrosion of metals by anodic or cathodic protection C23F13/00)} · CPC title

• Y10T156/10

  Methods of surface bonding and/or assembly therefor · CPC title

• C09J2433/006

  in the substrate · CPC title

• B32B2405/00

  Adhesive articles, e.g. adhesive tapes · CPC title